<template>
  <div class="xtx-cart-page">
    <div class="container">
      <XtxBread>
        <XtxBreadItem to="/">首页</XtxBreadItem>
        <XtxBreadItem>购物车</XtxBreadItem>
      </XtxBread>
      <div class="cart">
        <table>
          <thead>
            <tr>
              <th width="120"><XtxCheckbox @change="checkAll" :modelValue='$store.getters["cart/isCheckAll"]' >全选</XtxCheckbox></th>
              <th width="400">商品信息</th>
              <th width="220">单价</th>
              <th width="180">数量</th>
              <th width="180">小计</th>
              <th width="140">操作</th>
            </tr>
          </thead>
          <!-- 有效商品 -->
          <tbody>
            <tr v-if="$store.getters['cart/validList'].length===0">
                <td colspan="6">
                  <CartNone />
                </td>
              </tr>
            <tr v-for="goods in $store.getters['cart/validList']" :key="goods.skuId">
              <td><XtxCheckbox @change="($event)=>checkOne(goods.skuId, $event)" :modelValue="goods.selected" /></td>
              <td>
                <div class="goods">
                  <RouterLink :to="`/product/${goods.id}`"><img :src="goods.picture" alt=""></RouterLink>
                  <div>
                    <p class="name ellipsis">{{ goods.name }}</p>
                     <!-- 选择规格组件 -->
                    <CartSku @change='$event=>updateCartSku(goods.skuId, $event)' :skuId="goods.skuId" :attrsText="goods.attrsText" />
                  </div>
                </div>
              </td>
              <td class="tc">
                <p>&yen;{{ goods.price }}</p>
                <p v-if="goods.price - goods.nowPrice > 0" >比加入时降价 <span class="red">&yen;{{ goods.price - goods.nowPrice }}</span></p>
              </td>
              <td class="tc">
                <XtxNumbox @change="$event=>updateCount(goods.skuId, $event)" :max='goods.stock' :modelValue='goods.count' />
              </td>
              <td class="tc"><p class="f16 red">&yen;{{ Math.round(goods.nowPrice*100)*goods.count/100  }}</p></td>
              <td class="tc">
                <p><a href="javascript:;">移入收藏夹</a></p>
                <p><a @click="deleteCart(goods.skuId)" class="green" href="javascript:;">删除</a></p>
                <p><a href="javascript:;">找相似</a></p>
              </td>
            </tr>
          </tbody>
          <!-- 无效商品 -->
          <tbody v-if="$store.getters['cart/inValidList']">
            <tr><td colspan="6"><h3 class="tit">失效商品</h3></td></tr>
            <tr v-for="goods in $store.getters['cart/inValidList']" :key="goods.shuId">
              <td><XtxCheckbox style="color:#eee;" /></td>
              <td>
                <div class="goods">
                  <RouterLink to="/"><img :src="goods.picture" alt=""></RouterLink>
                  <div>
                    <p class="name ellipsis">{{ goods.name }}</p>
                    <p class="attr">{{ goods.attrsText }}</p>
                  </div>
                </div>
              </td>
              <td class="tc"><p>&yen;{{ goods.noewPrice }}</p></td>
              <td class="tc">{{ goods.count }}</td>
              <td class="tc"><p>&yen;{{ Math.round(goods.nowPrice*100)*goods.count/100 }}</p></td>
              <td class="tc">
                <p><a class="green" @click="deleteCart(goods.skuId)" href="javascript:;">删除</a></p>
                <p><a href="javascript:;">找相似</a></p>
              </td>
            </tr>
          </tbody>
        </table>
      </div>
      <!-- 操作栏 -->
      <div class="action">
        <div class="batch">
          <XtxCheckbox @change="checkAll" :modelValue='$store.getters["cart/isCheckAll"]' >全选</XtxCheckbox>
          <a @click="batchDeleteCart" href="javascript:;">删除商品</a>
          <a href="javascript:;">移入收藏夹</a>
          <a @click="batchDeleteCart(true)" href="javascript:;">清空失效商品</a>
        </div>
        <div class="total">
          共 7 件商品，已选择 2 件，商品合计：
          <span class="red">¥400</span>
          <XtxButton @click="checkout" type="primary">下单结算</XtxButton>
        </div>
      </div>
      <!-- 猜你喜欢 -->
      <GoodRelevant />
    </div>
  </div>
</template>
<script>
import GoodRelevant from '@/views/goods/components/goods-relevant'
import { useStore } from 'vuex'
import Message from '@/components/library/Message'
import Comnfirm from '@/components/library/Confirm'
import CartNone from './components/cart-none.vue'
import CartSku from './components/cart-sku.vue'
import { useRouter } from 'vue-router'

export default {
  name: 'XtxCartPage',
  components: { GoodRelevant, CartNone, CartSku },
  setup(props) {
    const store = useStore()
    const router = useRouter()
    // 修改的状态
    const checkOne = (skuId, selected)=>{
      store.dispatch('cart/updateCart', {skuId, selected})
    }

    // 全选
    const checkAll = (selected) => {
      store.dispatch('cart/checkAll', selected)
    }

    // 删除
    const deleteCart = (skuId)=>{
      Comnfirm({type:'提示', text:'你是否确定删除商品'}).then(rea=>{
        store.dispatch('cart/deleteCart', skuId).then(res=>{
        Message({type:'success', text:'删除成功'})
      })
      }, err=>{
        Message({text:'点击取消'})
      })
    }

    // 批量删除
    const batchDeleteCart = (clear) => {
        Comnfirm({type:'提示', text:`你是否确定删除${clear?"无效":"选中的"}商品吗`}).then(rea=>{
         store.dispatch('cart/batchDeleteCart', clear).then(()=>{
           Message({type:'success',text:'删除成功'})
         })
      }, err=>{
        Message({text:'点击取消'})
      })
    }

    // 修改商品数量
    const updateCount = (skuId, count) => {
      store.dispatch('cart/updateCart', {skuId, count})
    }

    // 修改规格信息 
    const updateCartSku =  (oldSkuId, newSku)=>{
      store.dispatch('cart/updateCartSku', {oldSkuId, newSku})
    }

    // 点击确认结算
    const checkout = () => {
        // 1. 判断是否选中商品，且提示
        // 2. 弹出确认框，提示：下单结算需要登录
        // 3. 使用导航守卫，遇见需要登录的路由跳转，拦截到登录页面
        if(store.getters['cart/selectedList'].length <= 0){
          return Message({text:'至少挑选一个商品'})
        }
        // 已登录 直接跳转
        if(store.state.user.profile.token){
          return router.push('/member/checkout')
        }
        // 未登录  弹出确认框
        Comnfirm({title:'提示', text:'您尚未登录, 是否前往登录'}).then(()=>{
          return router.push('/member/checkout')
        })
    }

    return {checkOne, checkAll, deleteCart , batchDeleteCart, updateCount, updateCartSku, checkout}
  }
}
</script>
<style scoped lang="less">
.tc {
  text-align: center;
  .xtx-numbox {
    margin: 0 auto;
    width: 120px;
  }
}
.red {
  color: @priceColor;
}
.green {
  color: @xtxColor
}
.f16 {
  font-size: 16px;
}
.goods {
  display: flex;
  align-items: center;
  img {
    width: 100px;
    height: 100px;
  }
  > div {
    width: 280px;
    font-size: 16px;
    padding-left: 10px;
    .attr {
      font-size: 14px;
      color: #999;
    }
  }
}
.action {
  display: flex;
  background: #fff;
  margin-top: 20px;
  height: 80px;
  align-items: center;
  font-size: 16px;
  justify-content: space-between;
  padding: 0 30px;
  .xtx-checkbox {
    color: #999;
  }
  .batch {
    a {
      margin-left: 20px;
    }
  }
  .red {
    font-size: 18px;
    margin-right: 20px;
    font-weight: bold;
  }
}
.tit {
  color: #666;
  font-size: 16px;
  font-weight: normal;
  line-height: 50px;
}
.xtx-cart-page {
  .cart {
    background: #fff;
    color: #666;
    table {
      border-spacing: 0;
      border-collapse: collapse;
      line-height: 24px;
      th,td{
        padding: 10px;
        border-bottom: 1px solid #f5f5f5;
        &:first-child {
          text-align: left;
          padding-left: 30px;
          color: #999;
        }
      }
      th {
        font-size: 16px;
        font-weight: normal;
        line-height: 50px;
      }
    }
  }
}
</style>